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Watco Powerfloat Primer

Allows smooth concrete to be painted without mechanical preparation

  • Unique formula prevents paint peeling off smooth concrete
  • Retain the smooth powerfloat finish
  • Can be overcoated with most paints including Watco Epoxy Gloss Coat
  • Avoids costly shot blasting

Frequently bought together


Enables coatings to be applied to hard, smooth surfaces which would usually reject paint. Avoid using any coating which includes a strong solvent. For more information, please download a product datasheet from the quick links below. 

Recommended areas of use

  • Priming power floated, very smooth or non porous concrete floors which are prone to rejecting paint
  • Clear Powerfloat Primer can be used on clear ceramic tiles before application of Watco Protecta-Coat


  • Primes hard, smooth surfaces ready for painting
  • Eliminates the need for costly shot blasting or grinding
  • One coat application: quick and easy to apply
  • Low odor
  • Superior performance demonstated by ISO testing to CE Mark EN1504-2
  • Easily applied by roller

Powerfloat Primer curing times:

The following is based on good ventilation and a floor temperature of 15 -20°C

  • With all epoxy coatings such as Watco Epoxy Gloss Coat or Safety Coat: Allow the Primer to dry for 16 hours, but no longer than 72 hours before overcoating
  • With Watco Concrete Floor Paint, Flexicoat and Safety Grip Flex: Allow the Primer to dry for at least 5 days before overcoating
  • With polyaspartic coatings such as Cold Set Coating or Safety Coat Cold Cure: Allow the primer to dry for at least 16 hours but no longer than 72 hours before overcoating
Properties An adhesive primer for smooth, non-porous surfaces.
Suitable for Powerfloated or glazed concrete, ceramic tiles and stainless steel.
Interior or Exterior Interior and exterior.
Coverage 30m² per 5L.
Number of coats 1
Minimum application temperature Air temperature: 15°C, floor Temperature 10°C.

Surface preparation

New concrete should be allowed at least 28 days to dry. Surfaces should be clean, dry and free from oil, grease, dust, dirt and other contaminants. Existing coatings should be well bonded and sound.


The tall outer tin contains a tin of Resin and a tin of Activator. Remove these two tins and stir the contents of each thoroughly. Decant both tins into the tall outer tin. The two components should then be very thoroughly mixed together using a wide bladed stirrer. A wooden batten at least 25mm wide is ideal. Mix for 2–3 minutes until an even colour and consistency are obtained.


If appearance is critical we recommend the application of a small trial area first.

Decant the mixed components into a roller tray and apply using a medium pile type roller. A brush may be used for cutting in. Aim to apply the mixed components within one hour (they are usable for up to 2 hours maximum at 20°C). Do not apply at temperatures below 10°C or above 30°C. Cold or damp conditions may retard or prevent full curing. Avoid applying too thickly.

Case studies

£74.30 (Ex VAT)

In stock

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Tools and accessories

Paint Brush

Paint Brush

Professional paint brushes suitable for all coatings

From £2.20  (Ex VAT)

12" Roller Frame & Handle

12" Roller Frame & Handle

A sturdy roller applying floor coatings

From £7.70  (Ex VAT)

Watco Painting Kit

Watco Painting Kit

Everything you need to help with floor painting

From £41.00  (Ex VAT)

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Help & Advice

Contact our friendly and professional Technical Advisors for expert help and advice for your project. You can give us a call on 01483 418 418 or email

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